Paige and Frankie turn to crazy Bizaardvark Superfan Belissa to learn how to combat Principal Karen's over the top obsession with the duo.
Principal Karen has developed an obsession with Bizaardvark and becomes a nuisance to Paige and Frankie, who visit Belissa for advice on what to do. The girls learn that Belissa was sent to a military school after she kidnapped them. Belissa advises the girls to tell Karen that her obsession with Bizaardvark is not helping them. After following Belissa's advice, Paige and Frankie then learn that she has escaped her military school and is searching for Karen. Believing that Belissa is jealous of Karen and wants to harm her, the girls hide Karen in the Bizaardvark studio. However, Belissa finds them and reveals that she only wanted to meet Karen because they are both super fans of Bizaardvark. Karen and Belissa then become friends. Meanwhile, Dirk and Bernie play a board game with Amelia and are upset that she keeps beating them.